Paste-dispensing device



Jan. 4 1 2 9 7 E. WISROTH PA STE DISPENSING DEVICE Filed Oct. 2,

' Pa ta Jan; 4 1921.

UNITED; ST TE PATENT orr ca.

nnns'r wxsnlorn, or Los ANGnnnsfcALIroRN IA.

, r-astrn-nrsrnnsine DEVICE.

Application filed October 2; 1924. Serial 1o..741,187.

This invention is an improvement overthe device disclosed in mymo-pendmg appllca- .tion, Serial No. 656,936, filed August 11,

a It is an object of this invention to proto provide an attahcment for tubes of. conventional construction 1n wlilch a closure 1s mounted whichds'adjustable and which will stantmllyupon the line-8'- 8 of Fig. 7.

limit the amount of paste being discharged from the tube at one time.

With the foregoing and'other objects in view which will be mademanifest in the following detailed descsiption and pointed outv in the appended claims, reference is had to the accompanying drawings for an illustrative embodiment of the i Vention, wherein: Figure 1 is a side ele'ation, parts being broken away and shown in section, of a paste dispensing tubeshowing the improved clo sure therein, 7 I Fi 2 is a view similar to Fig. 1, the closure being shown inclosing position, a

Fig. 3 1s a horizontal section taken substantially upon the line of Fig. 2

Fig. gt is a. positive view of the closure shown in Figs. land 2, Fig. 5 is a partial side elevation, parts he.- ingbroken away and shown in section, of a paste dispensingtube provided with an attachment in whlch a closure is provided,

Fig. 6 is a. horizontal section taken subdstantiallynpontheline 6 6 of Fig. 5',

Fig; 7 1s a view s', '-1ar to Fig. 5, showing} modified form, and I J 8 1s ahorizontalsction taken sub- Referring to the accompanying drawings wherein similar reference characters designate partsiihroughout, a paste dispe tube P which may be formed of malice le metal, sud! .as lead, is provided with a eonicaltop 10 having a threaded-nipple 11 in which is provided a passage 12 through which the paste within the paste tube P is discharged. A suitable cap 13 is A still further object of this invention is adapted to be threaded on to the nipple 11 to close the tube 1?.

Within the tube there is disposed a closure, s

generally designated at 14, which is formed of a conical head provided with a concaved back 16, as indicated by dotted lines in the figures. A shank 17 is integrahwith the head 15 and is provided with an adjusting screw'18. Side ribs 19 are formed upon the sides of the shank 17 which side ribs are disposed between guides 20 formed upon the interior surfaces of the nipple 11.

The operation of the paste tube shown in Figs. -1 tofl inclusive is as follows: The

cap 13 having, been removed from the .nip- 7 ple 11, the paste tube P may be squeezed, thereby forcing paste outwardly through the passage 12 about the"shank 17. The outward movement of the paste causes the closure 14 to slide downwardly within the passage 12 so that the conical head 15 engages the interior surfaces of the conical top 10, therebycutting' 01? or preventing further discharge of paste through the passage 12.

When'the cap 13 is-again applied, the C10- so sure 14: is forced back within the. paste tube P and upon removal of the cap 13, another quantity of paste may be discharged from the paste tube P, as before. The

amount of. paste discharged'from the aste' a5 tube B may be varied by adjusting the adjustingscrew 18. Obviously, if the adjust- -g 1ng screw 18. is practically withdrawn from the shank 17 the engagement with the cap 13 Wlll force the closure Is farther within thetube, P than if the adju ting screws were practically enclosed withi the shank 17.

The ribs 19 of-the guides 20' serve to prevent rotation of the shank 17 while the ad jectlng justing.

In Fig. 5 I tee disclosed amodified are wherein the pastetube P? is provided with aconical top lO'having a threaded nipple 11,' through which there .is formed a. pas- 10o sage 12. The length of the passage'12' is increas by applying an attachment 21 1s threaded on to the nipple 11' and has tiff-passage 22 formed therein. Aconical seat23 is formed upon the interior be e 165 attachment 21, which is ada ted to receiv' or seat the conical head 15 of thdclbsut 14' The shank carries ribs 19' between guides 20 formed upon the interior of the nipple portion 24' of the attachment 21. no

screw 18 is being turned during adk closure 14 are designed so as to be applied to paste tubes of conventional construction,

which have not been provided with closures 14, as shown in Figs. 1 and 2.

In Fig. 7 a similar attachment 21 is mounted upon the paste tube P carrying a closure 14 similar in construction to the closures 1 1 and 1 1. The shank 17 as shown.

in Fig. 8 is rectangular in construction and the interior of the nipple portion 245 of the attachment 21 is rectangular in form. The paste from within the paste tube P passes outwardly through the nipple 11 into the attachment 21 and outwardly through the nipple 24 about the shank 17 The closure 14 is provided with an adjusting screw 18, as before. In the device shown in Fig. 7, the square or rectangular shaped shank 17 isdesigned to prevent rotation of the closure 14L while the adjusting screw 18 is being adjusted. This form of passage within the nipple 24 of the attachment 21 enables a ribbon of paste to be discharged from the tube, whereas in the forms shown in Figs. 1 and 5, a round stream of paste is discharged from the tube.

The heads 15, 15' and 15 are preferably concaved so that paste may easily engage the concaved surface and force the closure outwardly through the passages. This has the advantage over a closure having a rounded head or convex head for the reason that heads of such form permit the paste to slide by the closure without forcing the closure,

outwardly.

'It will be understood that various changes may be made in the detail of construction without departing from the spirit or scope of the invention as defined by the appended claims.

I claim:

1. A paste container having a passage through which paste is adapted to be discharged, a cap for said passage, a closure for said passage comprising ashank carrying a head disposed within the paste, said closure being adapted to be forced outward- -ly by the discharge of said paste thereby stopping the discharge of said paste, said cap being adapted to force said closure back within said paste, anadjusting screw carried by said closure adapted to engage said cap for adjusting the distance that said closure is forced inwardly by said cap, and means for preventing rotation of said closure while said screw is being adjusted.

2. In combination with a paste container having a discharge nipple, anattachment having a passage therethrough through which paste is adapted to be discharged, a closure for said passage adapted to be forced outwardly by the discharge of said paste, said closure having a head adapted to engage portions within said passage thereby limiting the out ward movement of said paste, a cap for said attachment adapted upon application to force said closure back within said passage, an adjusting screw carried by said closure for adjusting the distance said closure is pushed back within said passage by said cap, and'means for preventing rotation of said closure while said screw is being adjusted.

3. An attachment for paste containers and the like comprising a tubular member threaded for attachment to the discharge nipple of the container whereby the passage in the tubular member may be arranged in alignment with the passage in the discharge nipple, a closure disposed within. the passage through the tubular member adapted to be forced outwardly therein upon the discharge of paste from the container, there being a seat formed in the passage in said tubular member upon which-said closure is adapted toseat for limiting its outward movement, said closure carrying a shank adapted to be projected through the end of the tubular member, an adjusting screw carried by said shank, the tubular member being threaded to permit a closure cap to be applied thereto, the adjusting screw being adapted to be engaged by the cap when applied to force the closure back within the tubular member, and means for preventingrotation of said closure within said tubular member while the adjusting screw is being adjusted. I

In testimony whereof I have signed my name to this specification.

ERNST WISROTH. 

